2026 Compare Cities People:
Thornton, CO vs Jacksonville, FL

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Highlights
- Jacksonville is 0% more densely populated than Thornton.
- People are 17.1% less likely to be married in Jacksonville.
- The Median Age is 2.5 years older in Jacksonville.
 Thornton, COJacksonville, FLUnited States
 Population  Unlock937,690329,725,481
 Female Population49.6%  Unlock50.5%
 Male Population50.4%  Unlock49.5%
 Median Age  Unlock36.238.4
 space3
 Population - 2010119,544  Unlock309,327,143
 Population - 2000  Unlock735,617285,036,114
 Population - 199055,031  Unlock251,960,433
 Pop. 2000 to Now  Unlock25.1%15.6%
 Pop. 1990 to Now169.1%  Unlock30.8%
 space4
 Population Density  Unlock1,254.093.4
 Land Area35.3  Unlock3,531,905.4
 Water Area  Unlock126.9264,836.8
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 Est. Total Population By Age
 Thornton, COJacksonville, FLUnited States
 Age 0 to 46.9%  Unlock5.9%
 Age 5 to 9  Unlock6.3%6.1%
 Age 10 to 148.9%  Unlock6.6%
 Age 15 to 17  Unlock3.5%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock5.2%5.2%
 Age 25 to 3416.0%  Unlock13.8%
 Age 35 to 44  Unlock13.0%12.9%
 Age 45 to 5412.9%  Unlock12.6%
 Age 55 to 59  Unlock6.8%6.7%
 Age 60 to 644.1%  Unlock6.3%
 Age 65 to 74  Unlock8.7%9.6%
 Age 75 to 842.6%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 Thornton, COJacksonville, FLUnited States
 White52.7%  Unlock59.4%
 Black  Unlock30.3%12.2%
 Asian5.1%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races3.3%  Unlock3.2%
 Hispanic  Unlock10.9%18.4%
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 Marriage & Family
 Thornton, COJacksonville, FLUnited States
 Married Population53.7%  Unlock49.8%
     Currently Married  Unlock42.4%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock55.5%50.2%
 Never Married32.6%  Unlock33.8%
 Divorced  Unlock14.0%10.8%
 Widowed3.2%  Unlock5.6%
 space5
 Household Size  Unlock2.502.60
 Households47,599  Unlock124,010,992
 Family Households  Unlock222,30880,755,759
     Married couple, w/children40.7%  Unlock30.5%
     Married couple, no children  Unlock39.2%42.9%
 Non Family Households13,584  Unlock43,255,233
     Single householder, w/children  Unlock20.5%15.8%
     Single householder, no children7.8%  Unlock10.8%
Reviews for Thornton    5 Reviews

Good place. Very suburbany (similar to the Springs). The houses are very small and old and yet still very expensive (albeit cheaper than southern Denver). Actually lots  More

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Over 6 years ago

I like Denver metro, but some cities aren’t too great. Thornton being one of them. Moved here because of highway access, and convenience to DIA for business travel. Am  More

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Over 11 years ago

The quality of life here in not good. The traffic is bad all the time. To try to get to the mountains takes forever! Also most lakes along the front range you can't even  More

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Reviews for Jacksonville    174 Reviews

I moved from a small town in Ohio around four years ago, I was 24 years old. Now, at 28, my outlook about living here has changed. I have came to the conclusion, that,  More

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I’ve lived in Jacksonville for 12+ years(but visited on and off much longer). There’s things I love and things I hate and just like any place there are pros and cons.  More

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We have been investigating Jax for a while. It looks like the Southside, Baymeadows and the further East you get is great. Any thoughts on moving to those areas, pretty  More

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